Invention Grant
- Patent Title: Lossless over-current detection circuit for Royer oscillators and push-pull converters
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Application No.: US14430624Application Date: 2013-10-09
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Publication No.: US09989564B2Publication Date: 2018-06-05
- Inventor: Atul Abhyankar , Peter Cheung
- Applicant: MURATA MANUFACTURING CO., LTD. , MURATA POWER SOLUTIONS
- Applicant Address: JP Kyoto
- Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- International Application: PCT/US2013/064033 WO 20131009
- International Announcement: WO2014/058966 WO 20140417
- Main IPC: G01R31/02
- IPC: G01R31/02 ; G01R19/165 ; H02M1/32 ; H02M3/338 ; G01R19/00 ; H02H9/02 ; G05F1/00 ; H01L21/00 ; H02M1/00

Abstract:
A circuit including over-current protection includes a voltage input, first and second switching transistors that are complementarily switched and that receive current from the voltage input, a first resistor, a first diode including a first anode and a first cathode, and a second diode including a second anode and a second cathode. The first anode and the second anode are connected to each other and are connected to the voltage input via the first resistor. The first cathode is connected to the first switching transistor and the second cathode is connected to the second switching transistor such that the connection of the first and second anodes provides an over-current signal that is related to the current in the first and second switching transistors.
Public/Granted literature
- US20150241484A1 LOSSLESS OVER-CURRENT DETECTION CIRCUIT FOR ROYER OSCILLATORS AND PUSH-PULL CONVERTERS Public/Granted day:2015-08-27
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